Add Listing
    For Sale
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    Back to Search
    Spacious Portland Duplex Opportunity Title is generated by Realmo AI

    770 NE 91ST Ave, Portland, OR 97220

    View on Map
    Claim this Listing
    For Sale
    $649,999

    MULTI_FAMILY - Portland, OR

    Property size:
    3,200 SF
    Lot size:
    0.12 Acres
    Price / SF:
    $203/SF
    Added:
    Feb 17, 2026
    Days on Market:
    95
    Last Refresh:
    May 23 at 3:06 am

    Property Features for 770 NE 91ST Ave

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Zoning
    R2
    Bedrooms
    4
    Bathrooms
    2
    Rooms
    Bedroom 2, Bedroom 4, Bathroom 1, Bedroom 1, Bathroom 2, Bedroom 3
    Standard status
    Active
    APN
    R261130
    Size
    3,200 SF
    Lot size
    0.12 Acres

    Taxes and HOA fees

    Tax Description
    ROSE WOOD, BLOCK 3, N 1/2 OF LOT 19-22
    Tax Annual Amount
    6569

    Utilities

    Heating system
    Forced Air

    Building Details

    Year built
    1965
    Floors in Building
    2
    Number of units
    2

    We can help!

    Listing Contact
    Sonya DeAngelo

    Listing agent Sonya DeAngelo

    Listing office Sonya DeAngelo Real Estate 948 NE 102nd Ave Ste 102, Portland, OR

    Listing date Feb 17, 2026

    MLS# 158958167 Listing URL

    Copyright © 2026 Regional Multiple Listing Services. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Spacious 4BR Duplex with over 3200 sq ft
    • Great as Owner occupied investment - live in one unit and rent the other
    • Long term renters in place
    • Potential for increased rental income
    • Forced Air Heating
    • Built in 1965

    Overview

    This multifamily property in Portland, Oregon, features a spacious duplex with over 3200 square feet of living space. The property, zoned R2, is situated on a lot of approximately 0.12 acres. The duplex has long-term renters currently paying below-market rent. This property presents an opportunity for owner-occupancy, allowing the owner to live in one unit and rent out the second. The property is located in Portland, OR, with the postal code 97220, situated in Multnomah County.

    Financial Insights

    Value Estimation Calculated for Multifamily LT 5

    Conservative
    $495.5K
    NOI $44,594 @ 9.00% cap · cautious / downside scenario
    Moderate
    $637.1K
    NOI $44,594 @ 7.00% cap · market / base-case scenario
    Aggressive
    $891.9K
    NOI $44,594 @ 5.00% cap · optimistic / upside scenario

    NOI & Cap Rate Calculator

    NOI Build-Up
    Vacancy
    income lost from leasable area expected to sit empty during the year — subtracted from gross rent.
    EGI (Effective Gross Income)
    gross rent minus vacancy losses — the realistic income before paying operating costs.
    OpEx (Operating Expenses)
    recurring costs to operate the property (property tax, insurance, utilities, maintenance, management) — excludes financing and capital improvements.
    NOI (Net Operating Income)
    income a property generates after operating costs but before financing and taxes.
         Calculated for Multifamily LT 5

    Component $ $/SF
    Gross rent $67.2k $21.00
    − Vacancy −$3.5k −$1.09
    EGI $63.7k $19.91
    − OpEx −$19.1k −$5.97
    NOI $44.6k $13.94
    3,200 SF · lease $21.00/SF/yr · vacancy 5.20% · expense 30.00%

    Alternative Use Scenarios

    Best Use
    Multifamily LT 5
    $637.1K
    $557.4K – $743.2K (±1% cap)
    NOI $44,594 @ 7.0% cap · market cap 6.86%
    Second Best
    Apartment 5plus
    $587.0K
    $513.6K – $684.8K (±1% cap)
    NOI $41,088 @ 7.0% cap · market cap 6.32%
    Theoretical Best
    Office A
    $898.6K
    $786.3K – $1.05M (±1% cap)
    NOI $62,905 @ 7.0% cap · market cap 9.68%
    Zoning and permitted uses should be independently verified with local authorities.
    Property Profile Location Intelligence

    Current Use by Public Records

    Duplexes

    Suggested Use

    Law Firm Restaurant Real Estate Agency Spa & Massage Center Hair Salon Dental Office Nail Salon Food Market Gym & Fitness Center Grocery & Convenience Store

    Zoning and permitted uses should be independently verified with local authorities.

    Location Insight

    • Map
    • Local Demand
    City
    Portland
    County
    Washington
    State
    Oregon
    Longitude
    -122.569604
    Latitude
    45.528349

    Nearby Similar for Sale

    • $899,000
      5,982 SF

      Versatile Commercial Property with Warehouse

      Mixed-use property featuring storefronts, restaurant, and warehouse space.
      1218 N Killingsworth Street, Portland, OR 97217
      View Details
    • $1,969,900
      4,815 SF

      New Multifamily Investment by Park

      Five-unit townhome investment across from Peninsula Park in Portland, Oregon.
      6179 N Albina Ave, Portland, OR 97217
      View Details
    • $2,889,900
      7,179 SF

      Rose City Park Multifamily Investment

      New 7-unit multifamily property in Portland's Rose City Park.
      2938 NE 62nd Ave, Portland, OR 97213
      View Details
    • $1,979,900
      4,588 SF

      New Cottage Homes in Beaumont-Wilshire

      Four newly built detached cottage homes in NE Portland.
      4895 NE CESAR E CHAVEZ Blvd, Portland, OR 97211
      View Details
    • $849,900
      3,207 SF

      Portland Triplex in Clinton-Division Neighborhood

      Fully leased triplex in a desirable, walkable Portland location.
      2735 SE CLINTON St, Portland, OR 97202
      View Details
    • $725,000
      3,892 SF

      North Portland Mixed-Use Triplex

      Cash-flowing triplex with commercial flexibility in a prime location.
      7521 N GLOUCESTER Ave N, Portland, OR 97203
      View Details
    • $799,999
      3,438 SF

      Classic Irvington Duplex with Income

      Spacious Portland duplex with market rents and further potential.
      1917 1919 NE 10TH Ave NE, Portland, OR 97212
      View Details
    • $3,439,900
      9,454 SF

      Southeast Portland Multifamily Investment Opportunity

      Eight newly constructed homes near SE Woodstock Blvd and Lents Park.
      7468 SE Tolman St, Portland, OR 97206
      View Details
    • $2,850,000
      9,120 SF

      Buckman Multifamily Investment Opportunity

      10-unit apartment building in Portland's vibrant Buckman neighborhood.
      1626 SE ASH St, Portland, OR 97214
      View Details
    • $1,749,900
      5,071 SF

      New Construction Townhouse Style Asset

      New 5-unit townhouse in Portland's Humboldt neighborhood.
      5870 N MISSOURI Ave, Portland, OR 97217
      View Details
    • $1,250,000
      5,225 SF

      Portland Multifamily Investment Opportunity

      Well-maintained 7-unit apartment building in Southeast Portland's Lents neighborhood.
      8451 SE FOSTER Rd, Portland, OR 97266
      View Details
    • $680,000
      2,544 SF

      Portland Triplex in Prime Location

      Three-unit property near Ladd Circle Park, ideal for investment.
      1903 SE 12TH Ave, Portland, OR 97214
      View Details

    FAQs

    What type of property is this?
    Duplex - Large duplex with long-term tenants and investment potential.
    Where is this duplex located?
    The property is located at 770 NE 91ST Ave Portland, OR.
    What is the asking price?
    The asking price for this property is $649,999.
    What are key features of this property?
    This property features: Spacious 4BR Duplex with over 3200 sq ft; Great as Owner occupied investment - live in one unit and rent the other; Long term renters in place
    (971) 207-6800
    We can help!
    Listing Contact
    Sonya DeAngelo
    Request Owner's contact information
    Message sent successfully
    Error
    If you are the owner or broker of this property and would like to edit or remove this listing please send a message to web site administrator.
    Message sent successfully
    Error
    Email to Your Friends
    Link copied to clipboard
    Separate multiple addresses with a comma
    Message sent successfully
    Error

    Realmo Value Estimations

    Realmo estimates a property’s market value using a proprietary methodology that incorporates public data and user-submitted information. This cumulative value is generated by integrating a variety of conventional and innovative methods. 

    Disclaimer

    These figures are not official appraisals and should not be used as a substitute for a valuation performed by a licensed appraiser.
    Actual market value may differ due to factors not captured in the data. Estimates are offered for informational purposes only, and users should conduct independent research before making financial or investment decisions.
    By using this feature, you acknowledge that Realmo is not responsible for actions taken based on these estimates.

    AI approach

    Realmo AI Method estimates property value using machine learning models trained on millions of comparable listings, transactions, and market signals. It analyzes property features, location intelligence data, and current market dynamics to predict the most probable market value in real time.

    Realmo CapRate Calculation

    Realmo calculates the Capitalization Rate (Cap Rate) to help estimate a property's potential return on investment. The Cap Rate is a fundamental metric in commercial real estate that measures the relationship between a property's net operating income and its market value.

    How We Calculate Cap Rate

    Cap Rate Formula:
    Cap Rate (%) = (Net Operating Income / Property Value) × 100

    Net Operating Income (NOI) Formula:
    NOI = Area × Lease Rate × (1 - Vacancy Rate) × (1 - Operating Expense Ratio)

    Components

    Net Operating Income (NOI) represents the annual income a property generates after operating expenses:

    • Area: Building square footage from property records
    • Lease Rate: Annual $/sqft based on market data for the property type and geographic location
    • Vacancy Rate: Percentage of unoccupied space based on market data for the property type and location
    • Operating Expense Ratio: Operating costs as a percentage of income, varies by property type

    Property Value is derived from:

    • Recent sale price (if available)
    • Statistical models using comparable sales
    • AI-powered valuation estimates

    Example Calculation

    For a 100,000 sqft Office Building:

    • Lease Rate: $25.00/sqft/year (market data for Office in this area)
    • Vacancy Rate: 8% (market data for Office in this area)
    • Operating Expense Ratio: 35% (typical for Office properties)
    • Property Value: $15,000,000

    Step 1: Calculate NOI

    NOI = 100,000 × $25.00 × (1 - 0.08) × (1 - 0.35)
    NOI = 100,000 × $25.00 × 0.92 × 0.65
    NOI = $1,495,000/year

    Step 2: Calculate Cap Rate

    Cap Rate = ($1,495,000 / $15,000,000) × 100
    Cap Rate = 9.97%

    Property Type Considerations

    Net Operating Income calculations vary by property type due to different operating expense ratios:

    • Office: Higher expenses (30-40%) for HVAC, utilities, maintenance
    • Retail: Moderate expenses (25-35%) for common area maintenance
    • Industrial/Warehouse: Lower expenses (15-25%) for minimal tenant services
    • Multifamily: Moderate expenses (35-45%) including property management
    • Self-Storage: Lower expenses (25-35%) due to minimal maintenance

    Market lease rates and vacancy rates are specific to each property type and geographic location, reflecting local market conditions.

    Disclaimer

    These calculations are estimates for informational purposes only and should not be used as a substitute for professional financial analysis or appraisal.

    • Cap Rate calculations depend on market data that may change over time
    • Actual operating expenses, lease rates, and vacancy rates may differ from market averages
    • Individual property conditions, lease terms, and tenant quality significantly impact actual NOI
    • Property value estimates are approximations and not official appraisals
    • Cap rates vary widely by market, property condition, and investment risk profile

    Professional Guidance Recommended: Before making any investment or financial decisions, consult with licensed appraisers, commercial real estate brokers, and financial advisors who can evaluate your specific property and circumstances.
    By using this feature, you acknowledge that Realmo is not responsible for investment decisions or actions taken based on these estimates.

    Cap approach

    Capitalization Method calculates value based on estimated net operating income (NOI) and applying a market-based capitalization rate (cap rate), we estimate what a typical investor might be willing to pay for it.

    Comparable approach

    Comparable estimate is based on recent sales of similar nearby properties, adjusted for factors like size, condition, and location.

    Relative

    Relative property class coefficient uses factors that account for typical price differences between various asset types (e.g., retail vs. industrial) to provide a more accurate market-aligned estimate.

    Geo

    Comparable Sales Method, enhanced by Geo coefficients — location-based adjustment factors that reflect differences in price levels across neighborhoods, cities, or regions ensuring a more accurate, market-sensitive valuation.

    Stat Estimate

    This method estimates value based on actual market adjusted recent (~5 years) sales of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all similar sales ($/sqft) are above this value
    • Range-to: 75% of all similar sales ($/sqft) are below this value
    AI Estimate

    This method estimates value based on AI market estimation of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all estimations ($/sqft) are above this value
    • Range-to: 75% of all estimations ($/sqft) are below this value
    Alternative use

    Estimate considers the property’s potential value if used for a different purpose-based on zoning, demand, and market feasibility.

    More about this property
    Thanks! Your message was sent.
    Error! Your message wasn't sent.
    Please enter your name
    Please enter email
    Please enter the email in the correct format
    Please enter phone
    Please enter the number in the correct format
    Please enter message
    Thank You

    You are Unsubscribed From Notifications

    Thank You for Inquiry
    770 NE 91ST Ave, Portland, OR 97220
    letter with green check mark
    Check your email
    We sent you the
    agent's contact details. yellow underline
    Can't find it?
    Please check your junk/spam folder.
    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!